U.S. patent number 9,142,906 [Application Number 13/941,571] was granted by the patent office on 2015-09-22 for power plug capable of simple assembly.
This patent grant is currently assigned to Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.. The grantee listed for this patent is Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.. Invention is credited to Zhou Chen, Che-Yu Chou, Hai-Qian Ge, Ji-Bing Guo, Qun Huang, Tao Jiang, Wen-Chih Lan, Zhi-Jun Shi, Hua-Yong Wang, Wei-Wei Yu, Jun-Liang Zhang, Tai-Shan Zhu.
United States Patent |
9,142,906 |
Chou , et al. |
September 22, 2015 |
Power plug capable of simple assembly
Abstract
A power plug for connecting with a power outlet includes at
least two metal connecting poles, two outputting cavities, and two
conductive resilient sheets. The two outputting cavities are
defined in a lower case of the power plug to connect an external
device. The two conductive resilient sheets are received within an
inner space of the power plug. The at least two metal connecting
poles pass through an exterior surface of the power plug into the
internal space to form two connecting terminals. Each of the
conductive resilient sheets is connected between one of the two
connecting terminals and a corresponding outputting cavity to
transport electrical power from the power jack to the external
device.
Inventors: |
Chou; Che-Yu (New Taipei,
TW), Huang; Qun (Shenzhen, CN), Zhu;
Tai-Shan (Shenzhen, CN), Jiang; Tao (Shenzhen,
CN), Lan; Wen-Chih (New Taipei, TW), Zhang;
Jun-Liang (Shenzhen, CN), Guo; Ji-Bing (Shenzhen,
CN), Wang; Hua-Yong (Shenzhen, CN), Shi;
Zhi-Jun (Shenzhen, CN), Yu; Wei-Wei (Shenzhen,
CN), Ge; Hai-Qian (Shenzhen, CN), Chen;
Zhou (Shenzhen, CN) |
Applicant: |
Name |
City |
State |
Country |
Type |
Fu Tai Hua Industry (Shenzhen) Co., Ltd.
HON HAI PRECISION INDUSTRY CO., LTD. |
Shenzhen
New Taipei |
N/A
N/A |
CN
TW |
|
|
Assignee: |
Fu Tai Hua Industry (Shenzhen) Co.,
Ltd. (Shenzhen, CN)
HON HAI PRECISION INDUSTRY CO., LTD. (New Taipei,
TW)
|
Family
ID: |
50233713 |
Appl.
No.: |
13/941,571 |
Filed: |
July 15, 2013 |
Prior Publication Data
|
|
|
|
Document
Identifier |
Publication Date |
|
US 20140073200 A1 |
Mar 13, 2014 |
|
Foreign Application Priority Data
|
|
|
|
|
Sep 12, 2012 [CN] |
|
|
2012 1 0335907 |
|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H01R
9/20 (20130101); H01R 13/502 (20130101); H01R
13/46 (20130101); H01R 31/06 (20130101); H01R
2103/00 (20130101) |
Current International
Class: |
H01R
13/04 (20060101); H01R 13/46 (20060101); H01R
9/20 (20060101); H01R 13/502 (20060101); H01R
31/06 (20060101) |
Field of
Search: |
;439/692 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Nasri; Javaid
Attorney, Agent or Firm: Novak Druce Connolly Bove + Quigg
LLP
Claims
What is claimed is:
1. A power plug for connecting with a power outlet, the power plug
comprising: an upper case; a lower case coupled with the upper case
to define a receiving space; at least two metal connecting poles
formed on the upper case to connect to the power outlet; two
outputting cavities defined in the lower case and configured to
connect an external device through a pair of connecting wires; and
two conductive resilient sheets received in the receiving space;
wherein the at least two metal connecting poles pass through the
upper case and extend into the receiving space to form two
connecting terminals protruding from a surface of the upper case
facing to the lower case, a part of each conductive resilient sheet
is received in a corresponding outputting cavity and another part
of each conductive resilient sheet is connected to a corresponding
connecting terminal to conduct electrical power from the power
outlet to the external device.
2. The power plug of claim 1, wherein each conductive resilient
sheet comprises a connecting portion, a first conductive member is
defined at one end of the connecting portion, and a second
conductive member is defined at another opposite end of the
connecting portion, the first conductive member is received in a
corresponding outputting cavity to connect to the external device,
and the second conductive member is electrically connected to a
corresponding connecting terminal.
3. The power plug of claim 2, wherein the first conductive member
is fixed to the connecting portion along a first direction, and the
second conductive member is fixed to the connecting portion along a
second direction perpendicular to the first direction.
4. The power plug of claim 3, wherein the connecting portion
further fixes a corresponding conductive resilient sheet to the
lower case, the connecting portion comprises a first connecting
section connected with the first conductive member and a second
connecting section connected with the second conductive member, and
the first connecting section is perpendicular to the second
connecting section.
5. The power plug of claim 4, wherein the first conductive member
comprises a first cylindrical part and a first output port
connected to the first cylindrical part, one end of the first
cylindrical part is connected to the first connecting section,
another end of the first cylindrical part is connected to the first
output port, and a first waist portion is defined on the first
output port to connect with the first cylindrical part.
6. The power plug of claim 5, wherein a diameter of the first waist
portion is less than that of the first cylindrical part and that of
the first output port.
7. The power plug of claim 6, wherein at least one first slit is
defined to pass through the first output port, the first waist
portion and a part of the first cylindrical part along a length
direction of the first conductive member.
8. The power plug of claim 7, wherein the first output port defines
three first slits, and one end of the first conductive member away
from the first connecting section is divided into three parts by
the three first slits.
9. The power plug of claim 2, wherein the first conductive member,
the second conductive member and the connecting portion are
integrated.
10. The power plug of claim 1, wherein a resisting member is
defined on a surface of the upper case opposite to the lower case,
the resisting member comprises a resisting wall extending from an
edge of the upper case and a spacing wall intersection with the
resisting wall, the spacing wall extends from the center of the
resisting wall and is located between the two connecting terminals,
the resisting wall defines a resisting surface resisting against
the two conductive resilient sheets to prevent the conductive
resilient sheets from slipping out of the lower case, and the
spacing wall is insulative the two conductive resilient sheets from
each other.
11. A power plug for connecting with a power outlet, the power plug
comprising: an upper case; a lower case coupled with the upper case
to define a receiving space; at least two metal connecting poles
formed on the upper case to connect to the power outlet; two
outputting cavities defined in the lower case and configured to
connect an external device through a pair of connecting wires; two
conductive resilient sheets received in the receiving space; and
two fixing members protruding extending from a bottom of the lower
case to threadedly engage with the two conductive resilient sheets
to fix the conductive resilient sheets to the lower case; wherein
the at least two metal connecting poles pass through the upper case
and extend into the receiving space to form two connecting
terminals protruding from a surface of the upper case facing to the
lower case, each conductive resilient sheet connects between a
corresponding outputting cavity and one of the two connecting
terminals to conduct electrical power from the power outlet to the
external device.
12. The power plug of claim 11, wherein each conductive resilient
sheet comprises a connecting portion, a first conductive member is
defined at one end of the connecting portion, and a second
conductive member is defined at another opposite end of the
connecting portion, the first conductive member is received in a
corresponding outputting cavity to connect to the external device,
and the second conductive member is electrically connected to a
corresponding connecting terminal.
13. The power plug of claim 12, wherein the first conductive member
is fixed to the connecting portion along a first direction, and the
second conductive member is fixed to the connecting portion along a
second direction perpendicular to the first direction.
14. The power plug of claim 13, wherein the connecting portion
further fixes a corresponding conductive resilient sheet to the
lower case, the connecting portion comprises a first connecting
section connected with the first conductive member and a second
connecting section connected with the second conductive member, and
the first connecting section is perpendicular to the second
connecting section.
15. The power plug of claim 14, wherein the first conductive member
comprises a first cylindrical part and a first output port
connected to the first cylindrical part, one end of the first
cylindrical part is connected to the first connecting section,
another end of the first cylindrical part is connected to the first
output port, and a first waist portion is defined on the first
output port to connect with the first cylindrical part.
16. The power plug of claim 15, wherein a diameter of the first
waist portion is less than that of the first cylindrical part and
that of the first output port.
17. The power plug of claim 16, wherein at least one first slit is
defined to pass through the first output port, the first waist
portion and a part of the first cylindrical part along a length
direction of the first conductive member.
18. The power plug of claim 17, wherein the first output port
defines three first slits, and one end of the first conductive
member away from the first connecting section is divided into three
parts by the three first slits.
19. The power plug of claim 12, wherein the first conductive
member, the second conductive member and the connecting portion are
integrated.
20. The power plug of claim 11, wherein a resisting member is
defined on a surface of the upper case opposite to the lower case,
the resisting member comprises a resisting wall extending from an
edge of the upper case and a spacing wall intersection with the
resisting wall, the spacing wall extends from the center of the
resisting wall and is located between the two connecting terminals,
the resisting wall defines a resisting surface resisting against
the two conductive resilient sheets to prevent the conductive
resilient sheets from slipping out of the lower case, and the
spacing wall insulates the two conductive resilient sheets from
each other.
Description
BACKGROUND
1. Technical Field
The present disclosure generally relates to power connectors, and
more specifically relates to a power plug.
2. Description of Related Art
A three-pole power plug includes an upper case and a lower case
coupled with the upper case to form a receiving space. The upper
case includes a positive terminal, a negative terminal and a ground
terminal to electrically connect to a corresponding power jack. The
lower case includes two outputting terminals respectively connect
to the positive terminal and the negative terminal through
connecting wires. A part of the connecting wires are packaged in
the receiving space of the power plug. During an assemble process
of the power plug, the connecting wires are respectively connected
to the positive terminal, the negative terminal and the outputting
terminals by means of soldering. However, it is inconvenient to
assemble the power plug by soldering.
Therefore, a heretofore unaddressed need exits in the industry to
overcome the aforementioned deficiency.
BRIEF DESCRIPTION OF THE DRAWINGS
The components in the drawings are not necessarily drawn to scale,
the emphasis instead being placed upon clearly illustrating the
principles of the plug. Moreover, in the drawings, like reference
numerals designate corresponding parts throughout the several
views.
FIG. 1 is an isometric view of a power plug in accordance with an
embodiment.
FIG. 2 is an exploded, isometric view of the power plug of FIG. 1,
viewed from a first direction.
FIG. 3 is an exploded, isometric view of the power plug of FIG. 1,
viewed from a second direction.
FIG. 4 is an enlarged view of the lower case of FIG. 2.
FIG. 5 is an assembled, isometric view of FIG. 2, showing the
conductive resilient sheets of FIG. 2 assembled to the lower
case.
FIG. 6 is a cutaway view of FIG. 1.
DETAILED DESCRIPTION
Embodiments of the present disclosure will be described with
reference to the accompanying drawings.
Referring to FIG. 1, an isometric view of a power plug 100 in
accordance with an embodiment is shown. In the embodiment, the
power plug 100 is a three-pole power plug. In other embodiments,
the power plug 100 may be a two-pole power plug.
Further referring to FIG. 2, an exploded, isometric view of the
power plug 100 viewed from a first direction is shown. In this
embodiment, the power plug 100 includes a lower case 10, an upper
case 20 coupled with the lower case 10 to define a receiving space
(not labeled), and two conductive resilient sheets 30 received in
the receiving space. The upper case 20 includes a first connecting
pole 22, a second connecting pole 24 and a third connecting pole
26. In this embodiment, the first connecting pole 22 is a ground
pole of the power plug 100, the second connecting pole 24 is a
positive conductive pole, and the third connecting pole 26 is a
negative conductive pole. The first connecting pole 22, the second
connecting pole 24 and the third connecting pole 26 are configured
to connect to a power jack (not labeled), wherein the first
connecting pole 22 connects to a ground (GND) terminal of the power
jack. In the embodiment, the second connecting pole 24 and the
third connecting pole 26 are defined on the upper case 20 and
aligned with each other. The first connecting pole 22 is defined on
the upper case 20 away from the second connecting pole 24 and the
third connecting pole 26. The first connecting pole 22, the second
connecting pole 24 and the third connecting pole 26 are
perpendicularly to the face of the upper case 20.
In the embodiment, each of the first connecting pole 22, the second
connecting pole 24 and the third connecting pole 26 is a
cuboid-shaped metal sheet. Each of the first connecting pole 22,
the second connecting pole 24 and the third connecting pole 26 has
a first distal end away from the upper case 20 and an opposite
second end embedded in the upper case 20. The diameter of the first
distal end is smaller than that of the second end. Such that the
first connecting pole 22, the second connecting pole 24 and the
third connecting pole 26 can be easily inserted into the power
jack. The length of the first connecting pole 22 is greater than
that of the second connecting pole 24 and the third connecting pole
26. When the power plug 100 is inserted into the jack, the first
connecting pole 22 is firstly contacted to the ground terminal of
the power jack for safety. When the power plug 100 is pulled out,
the second connecting pole 24 and the third connecting pole 26 are
firstly disconnected from the jack before the first connecting pole
22 is disconnected, thereby preventing a user from getting an
electric shock.
Referring to FIG. 3, an exploded, isometric view of the power plug
100 viewed from a second direction is shown. A first connecting
terminal 27 and a second connecting terminal 28 are defined on a
surface of the upper case 20 facing the lower case 10. The first
connecting terminal 27 is electrically connected to the second
connecting pole 24, and the second connecting terminal 28 is
electrically connected to the third connecting pole 26. In the
embodiment, the second connecting pole 24 and the third connecting
pole 26 pass through the upper case 20 and extend into the
receiving space to form the first connecting terminal 27 and the
second connecting terminal 28, respectively. The first and second
connecting terminals 27, 28 may be column shaped protrusions.
The upper case 20 further defines a resisting member 29 located on
a surface of the upper case 20 facing to the lower case 10, and
includes a resisting surface 290 extending from the upper case 20
to resist against the conductive resilient sheets 30. In this
embodiment, the resisting member 29 is "T" shaped, and includes a
resisting wall 291 and a spacing wall 293 intersecting with the
resisting wall 291. The resisting wall 291 extends from an edge of
the upper case 20. The spacing wall 293 extends from the center of
the resisting wall 291 and is located between the first and second
connecting terminals 27, 28. The resisting wall 291 defines the
resisting surface 290 resisting against the two conductive
resilient sheets 30 to prevent the conductive resilient sheets 30
from slipping out of the lower case 10. The spacing wall 293 is
insulatively space apart the two conductive resilient sheets 30
from each other.
Referring to FIG. 4, an enlarged view of the lower case 10 of FIG.
2 is shown. The shape and dimension of the lower case 10 match with
that of the upper case 20. A receiving groove 11 is defined in an
inner space of the lower case 10. Two extrusive stands 12 are
defined and extended from the bottom of the receiving groove 11
corresponding to the first and second connecting terminals 27, 28
to support the conductive resilient sheets 30. A fixing member 13
is defined on the bottom of the receiving groove 11 near each
extrusive stand 12 to fix a corresponding conductive resilient
sheet 30 to the lower case 10. In the embodiment, the fixing
members 13 are protrusions extending from the bottom of the lower
case 10. At least one fastening member 14 is formed on each of the
fixing members 13 to fix the corresponding conductive resilient
sheet 30 to the lower case 10. In this embodiment, two fastening
members 14 are defined on each of the fixing members 13, which are
screw posts. The fastening member 14 may be any kind of screw
posts, such as screw bolts or screw nuts. A sidewall 15 of the
receiving groove 11 near the resisting member 29 defines two
through holes 17 running through the sidewall 15. Two outputting
cavities 19 corresponding to the two through holes 17 are defined
on the lower case 10. The two outputting cavities 19 communicate
with the two through holes 17, correspondingly. The outputting
cavities 19 connect to an external device (not labeled) through a
pair of connecting wires to transport electrical power applied on
the second connecting pole 24 and the third connecting pole 26 to
the external device.
Each conductive resilient sheet 30 includes a connecting portion
31, a first conductive member 33 defined at one end of the
connecting portion 31, and a second conductive member 35 defined at
another opposite end of the connecting portion 31. The first
conductive member 33 is fixed to the connecting portion 31 along a
first direction, and is received in the outputting cavity 19
through the through hole 17 to connect the external device. The
second conductive member 35 is fixed to the connecting portion 31
along a second direction perpendicular to the first direction to
electrically connect to the first connecting terminal 27 or the
second connecting terminal 28. The first direction is the positive
direction of an X axis (as shown in FIG. 2-3), and the second
direction is the positive direction of a Z axis (as shown in FIG.
2-3). In the embodiment, the second conductive members 35 are
sleeve shaped, and the first and second connecting terminals 27, 28
are respectively sleeved into and electrically connected to the
second conductive members 35. In other embodiments, the second
conductive members 35 may be connected to the connecting terminals
27, 28 by other connecting means. For example, surfaces of the
second conductive members 35 may be respectively contacted with
surfaces of the first and second connecting terminals 27, 28,
thereby establishing connection between the second conductive
members 35 and the first and second connecting terminals 27,
28.
The connecting portion 31 includes a first connecting section 311
and a second connecting section 313. The first connecting section
311 is connected with the first conductive member 33. The second
connecting section 313 is connected with the second conductive
member 35. The first connecting section 311 is perpendicular to the
second connecting section 313 to form an "L" shape. A locking
member 37 corresponding to the fastening member 14 is defined on
the second connecting section 313 to fix a corresponding conductive
resilient sheet 30 to the lower case 10. A resilient sheet 315 is
connected between the second connecting section 313 and the second
conductive member 35. The resilient sheet 315 is deformed when the
second conductive member 35 is sleeved on the first connecting
terminal 27 or the second connecting terminal 28.
In the embodiment, the first conductive member 33 is cylinder
shaped. The first conductive member 33 includes a first cylindrical
part 330 and a first output port 331 connected to the first
cylindrical part 330. One end of the first cylindrical part 330 is
connected to the first connecting section 311. Another end of the
first cylindrical part 330 is connected to the first output port
331. A first waist portion 332 is defined on the first output port
331 to connect with the first cylindrical part 330. In this
embodiment, the diameter of the first waist portion 332 is less
than that of the first cylindrical part 330 and that of the first
output port 331. Using the first output port 331 and the first
waist portion 332, the first conductive member 33 can be more
firmly sleeved on other components, e.g., wires or cylindrical
conductive terminals. Further, at least one first slit 334 is
defined to pass through the first output port 331, the first waist
portion 332 and a part of the first cylindrical part 330 along the
length direction of the first conductive member 33. In the
embodiment, the number of the first slit 334 is three to divide one
end of the first conductive member 33 away from the first
connecting section 311 into three parts. Thus, the inner diameter
of the first conductive member 33 can be adjusted to facilitate
inserting other components therein. In other embodiments, the
number of the at least one first slit 334 may be two or more than
three.
The structure of the second conductive member 35 is similar to that
of the first conductive member 33. The second conductive member 35
includes a second cylindrical part 350 and a second output port 351
connected to the second cylindrical part 350. One end of the second
cylindrical part 350 is connected to the second connecting section
313. Another end of the second cylindrical part 350 is connected to
the second output port 351. A second waist portion 352 is defined
on the second output port 351 to connect with the second
cylindrical part 350. In this embodiment, the diameter of the
second waist portion 352 is less than that of the cylindrical part
350 and that of the second output port 351.
In other embodiments, the first conductive member 33, the second
conductive member 35 and the connecting portion 31 can be
integrated. The second conductive members 35 are correspondingly
connected to the first connecting terminal 27 and the second
connecting terminal 28. The first conductive members 33 are
correspondingly received in the outputting cavities 19 to connect
the external device. The connecting portion 31 connects between the
first conductive member 33 and the second conductive member 35.
Referring to FIGS. 5-6, an assembled, isometric view of FIG. 2 and
a cutaway view of FIG. 1 are shown. In assembly, the two conductive
resilient sheets 30 are located in the receiving groove 11 of the
lower case 10, the first conductive member 33 of each conductive
resilient sheet 30 is received in the outputting cavity 19 through
a corresponding through hole 17, and the second conductive member
35 of each conductive resilient sheet 30 resists the extrusive
stand 12. Then, the fastening member 14 of the fixing member 13 is
engaged with the locking member 37 of the conductive resilient
sheet 30 to fix the conductive resilient sheet 30 to the lower case
10. The upper case 20 is latched with the lower case 10 to make the
first connecting terminal 27 and the second connecting terminal 28
of the upper case 20 being correspondingly received in the two
second conductive members 35. The resisting wall 291 of the upper
case 20 is fastened to the sidewall 15 of the lower case 10 and
resists the first conductive members 33 of the conductive resilient
sheets 30, to prevent the first conductive members 33 from slipping
out of the through holes 17. Thus, the power plug 100 is completely
assembled.
In the embodiment of the present disclosure, the conductive
resilient sheets 30 of the power plug 100 are electrically
connected to the second connecting pole 24 and the third connecting
pole 26 of the upper case 20, to conduct the voltage applied to the
two connecting poles 24, 26 to the external device. Thus, previous
means of jointing the connecting wires and the first, second, and
third connecting poles 22, 24, 26 of the power plug 10 are not
needed any more. And since the conductive resilient sheets 30
replace the connecting wires, the assemble of the power plug 100 is
more convenient.
While various embodiments have been described and illustrated, the
disclosure is not to be construed as being limited thereto. Various
modifications can be made to the embodiments by those skilled in
the art without departing from the true spirit and scope of the
disclosure as defined by the appended claims.
* * * * *